Implant designed to rest on the surface of bone, under the periosteum.
It consists of a customized casting, made of a surgical grade metal or alloy.
Permucosal abutments, posts and intraoral bars are designed for prosthetic retention.
Three types may be distinguished:1.
Complete subperiosteal implant: Implant used in a completely edentulous arch. 2.
Unilateral subperiosteal implant: Implant located on one side of the posterior mandible or maxilla. 3.
Circumferential subperiosteal implant: Implant that bypasses remaining teeth or implants. 4.
Tripodial subperiosteal implant: Implant that uses the bilateral ramus and anterior symphysis for support with distribution to the extrinsic muscles of the tongue, the sublingual gland, and the mucosa of the region, and with anastomoses to the artery of the opposite side and the submental artery.
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